Season 1

Season 1 episodes1977-09-22

Season 1

Atlantis survivor Mark Harris breathes underwater, withstands extreme depth pressures and wields superhuman strength.

Open first episode

Episodes

Season 1

Episode 1

Melt Down

49m

Episode 2

The Mudworm

49m

Episode 3

The Hawk of Mu

48m

Episode 4

Giant

48m

Episode 5

Man O' War

48m

Episode 6

Shoot-Out at Land's End

48m

Episode 7

Crystal Water, Sudden Death

48m

Episode 8

The Naked Montague

48m

Episode 9

C.W. Hyde

48m

Episode 10

Scavenger Hunt

48m

Episode 11

Imp

48m

Episode 12

The Siren

1h 30m

Episode 13

Deadly Carnival

1h 30m